function TITTKey(tokens)  {
	
	var key = KeyFactory.SEP;
	
	for(var i = 0; i < tokens.length; i++) {
		key += tokens[i] + KeyFactory.SEP;
	}
	
	this.asKeyString = function() {
		return key;
	}
	
	this.toString = this.asKeyString;	
}
